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Nanozymes have emerged as enzyme-mimiking nanomaterials to overcome the low stability and high cost of some natural enzymes. The design and fabrication of nanozymes with superior performance than natural enzymes...

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Fluorescent silica-polydopamine hybrids have the light-induced oxidase-mimicking activity. The activity was quenched by Cu2+ and recovered by pyrophosphate ion (PPi), based on which, a colorimetric PPi detection method was established.

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Chemiluminescence of carbon nitride quantum dots in a hydrogen peroxide–hydrosulfite system was observed and used in ascorbic acid sensing.